Sure, Heidi Klum is a gorgeous model, Tom Hanks is a great actor and Pau Gasol plays a mean game of basketball ... but can they sing?

They all took part in the UNICEF Playlist With The A-List event at the El Rey Theatre in Los Angeles last night, where they hit the mic with varying degrees of success.

While Heidi and Tom joined forces for a fun version of The Village People's"YMCA" (costumes and all), Los Angeles Lakers player Pau Gasol performed a hilariously awful rendition of "How to Save a Life."

Also hitting the stage were Rita Wilson (who did The Supremes), a pregnant Molly Sims (who sang "Papa Don't Preach") and the guys of "Desperate Housewives" (who covered "R.O.C.K. In the USA").

Without a doubt, the best performance came from "E.R." stars Scott Grimes and Parminder Nagra, with Scott's vocals and piano playing skills shining while singing "Walking In Memphis."

Check out the hilarious video compilation of all the performances above!